{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x3513938b60b41bd8b01b3a127468bf561f7c2db2db1eaf3d4627cd81f29e1b05",
    "signature": "0xa6164fa8669999631ddb568f29479202b388dfb65b9eb97cab2735c3de3639fd1fffc526d9fda0f60a73dd15cd2e2914f7e2a7da0ffbc989f1d0bebe6f3bc2c11b",
    "signer": "0xdbb5FeAE65617ed3C8616A66B1152898647cb83F",
    "userId": "936213876"
  }
}